jstests/sharding/mongos_no_detect_sharding.js


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// Tests whether new sharding is detected on insert by mongos
(function() {

var st = new ShardingTest({ name: "mongos_no_detect_sharding",
                            shards: 1,
                            mongos: 2 });

var mongos = st.s;
var config = mongos.getDB("config");

print( "Creating unsharded connection..." );

var mongos2 = st._mongos[1];

var coll = mongos2.getCollection( "test.foo" );
coll.insert({ i : 0 });

print( "Sharding collection..." );

var admin = mongos.getDB("admin");

assert.eq( coll.getShardVersion().ok, 0 );

admin.runCommand({ enableSharding : "test" });
admin.runCommand({ shardCollection : "test.foo", key : { _id : 1 } });

print( "Seeing if data gets inserted unsharded..." );
print( "No splits occur here!" );

// Insert a bunch of data which should trigger a split
var bulk = coll.initializeUnorderedBulkOp();
for( var i = 0; i < 100; i++ ){
    bulk.insert({ i : i + 1 });
}
assert.writeOK(bulk.execute());

config.printShardingStatus( true );

assert.eq( coll.getShardVersion().ok, 1 );
assert.eq( 101, coll.find().itcount() );

st.stop();

})();